Locking-pin.



E. HERMANNQ LOCKING PIN.

AFPLICATION FILED DEC. 19, m2. RENEWED JAN. 15,1917.

1,237,51 5. Patented. Aug. 21,1917.

2 l/VVEIVTOR A TTOR/VEY EMANUEL HERMANN, or sAN rRANcIsCo, CALIFORNIA, ASSIGNOB or ONE-HALF iro CLARENCE n. scrIMIrr, or sANFRANcIsco, CALIFORNIA.

LoCKINe-PIN.

Application filed December 19, 1912, Serial No. 737,624. Renewed January 15, 1917. Serial 110.142.5565..

To all whom it may concern: I

Be it known that I, EMANUEL HERMANN, a subject of. the Emperor of Austria, residing at the city and county of San Francisco and 'Stateof ,California,have invented certain new and useful Improvements in Looking-Pins, of which the following is a specifi cation. 4

My invention relates to the class of lockingpins, and may, in a sense, be regarded as allied to cotter-pins, in that in part, at

least, it resembles such pins, and in use is.

intended to take their place.

The object of myinvention is to provide a locking-pin capable of convenient application, secure in its position, easy to be removed, well adapted for use again, and of good appearanceyand to this end my invention consists in the novel locking-pin which I shall nowfully describe,'by reference to the accompanying,drawings, in which- Figure l is a perspective view of my lock. lng-pln, showing its members separated and I about to be assembled, I

Fig. 2 is a perspective view of the same,

showing the members assembled.

.Fig. 3 is a longitudinal section of the body member of the locking-pin, the, locking member being shown in elevation,

Fig. 4 is an enlarged cross section on the line 00-00 of Fig. 3.

Fig. 5 is a view partly in elevation and partly in section showing the application'of my locking-pin to a bolt fitted with a castellated nut.

Fig. 6 is .a similar view showing the application of my pin to a bolt fitted with an ordinary nut.

The pin, as a whole, comprises a body member and a locking member. The body member is formed with a head 1 and a shank 2. Through the shank 2 is a longitudinal passage 3, and in the head 1 is a hole 4 which is in line with the passage 8. The locking member 5 has a head 6. To assemble these parts, the locking member 5 is slipped through the passage 3 of the shank 2 of the body member and through the hole 4: inthe head 1 of said member, and the projecting end 7 of said locking member is bent down upon the outside of the body member head 1, all as shown in Figs. 2 and 3. The two members are thereby securely locked together. 1

Specification of Letters Patent. Patented Aug. 21, 1917.

In Fig. 5, a bolt 8 is fitted with a ma shank 2 of the body member is first passed into one of the slots 10 of the nut and into the hole 11 of the bolt, until thehead lrof said body member lies within said slot. Thereupon the locking member ,5 which at this time is straight, asshown in Fig. 1, is passed into the opposing slot 10 of the nut andinto the opposite end of the hole'll in the bolt, and, entering the passage 3' of. the shank 2 of the body member, is slipped throughsaid passage and through the hole 4: in the head of thebody member, untilthe head 6 .of said locking member lies in its slot 10 of the bolt; and then the end 7 of said In Fig. 6 theibolt 8 is fitted with an o'rdi nary nut 12 and. the locking pin engages thebolt beyond .the nut. In this case, I have shown the body member of the locking pin as being a little longer than it is shown in F g. 5, for in some cases the body member may terminate within the hole of thebolt, as in Fig.- 5, or may pass through said hole, as in Fig. .6. Also in Fig. 6, in order to make the head 6 of thelocking member lie close to the bolt, I have shown said head as being formed at right angles to the member, instead of parallel with said member, as in the other figures. In order to remove the locking pin, it is only necessary to snip off the bent end 7 of the locking member 5 or if desired to straighten it out, and then to seizethe head 1 of the body member and withdraw said member, and then to withdraw the locking member. Both members are then fit for use again, the body member in all cases, it being unimpaired'because it is not bent or mutilated; and the locking mem ber may be reused if its end be carefully straightened out, but if not or if it be snipped ofi, then as said member is simply an ordinary piece of wire, a new member half round section, such as the ordinary cotter-plns are made from, it is of'concavo-con-.

vex section, as shown clearly in Fig. 4, thereby providing for the through passage 3 and said sectlon may be one originally found in Wire of this character, or may be made so by bendlng up flat W1re.

the head 1 of the body member is made flarlocking. member.

before bending the metal. Punching, 1n

' contradistinction to boring, is of advantage both in effecting the taper of the hole, and

in tending to a reinforcement of the metalby a sWaging effect, leaving all the-metal there, instead of removing any of it;

Thelocking member is, as I have stated, an ordinary piece of Wire readily fashioned and Well adapted for renewal.

-The body member not beingsubjected to any bending in the process of removal Will,

I as stated, be unimpaired, and can be easily used-again, unlike the ordinary cotter-pin,

theb ent ends of Which when straightened out are leftwith an 8 curve, Which renders the pin-somewhat difficult .of use again. Inmy locking p n there are no extensive and unsightly ends p'rojecting as with the ord1-' nary cotter-pins. Itis easy to insert and to remove and 1's posltlve in its lockmg effect. The body member belng relatively short, the

" legs of-its shank lie closely and firmly in parallelism, thus making it easy to introduce. The locking member beingof rela* tivelysmall diameter is adapted more easilyto find the hole in the body member so that Copies of this patent may be obtained for The hole 4 in great accuracy in the alinement of passages is not required.

I claim l. A locking-pin comprising a'body member made of a strip having a conca vo-convex cross section, said strip being bent to form a head and a shank composed of parallel legs having concave faces opposing each other, to provide a passage through said shank, and said head having a hole through it in line with the passage through said shank; and a locking member made of a wire bent at oneend to form a head, said Wire passing through the shank of the body member and through a hole in the head of "aid member, and having itsother end bent over on the exterior of'the body member head. I

2. A locking-pin comprising a bodymeinber made of a strip concavo-convex in cross section, doubled on itself toform a head and a shank composed of parallel legs having concave faces opposing each other, to provide a passage through said shank, and said head having formed inita hole flaring from the'exterior to the interior surface of the head, the hole being ahn'ed With the passage through said shank; and a locking member made of a Wire bent at one end to form a head, said Wire passing through'the shank of the body member and through the hole in the head of said member, and havin its other end bent over on the exterior of the body member head. M

In testimony whereof I have signed myname to this specification in the presence of two subscribing Witnesses.

- EMANUEL, HERMANN. \Vitnesses: VVM. F. Boo'rii,

' SVCONSTINE.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0.. ii I 

